Shulman, L. (2012). The skills of helping individuals, families, groups, and communities. (International ed.).
Lua i Stíl Chicago (17ú heag.)Shulman, Lawrence. The Skills of Helping Individuals, Families, Groups, and Communities. International ed. 2012.
Lua MLA (9ú heag.)Shulman, Lawrence. The Skills of Helping Individuals, Families, Groups, and Communities. International ed. 2012.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.